Intel BOXD850EMD2L - 850E 478PIN MAX-2GB UATX 3PCI Specifications page 44

Intel Desktop Board D850EMD2/D850EMV2 Technical Product Specification
1.14.2.3 LAN Wake Capabilities
CAUTION
For LAN wake capabilities, the +5 V standby line for the power supply must be capable of
providing adequate +5 V standby current. Failure to provide adequate standby current when
implementing LAN wake capabilities can damage the power supply. Refer to Section 2.11.3 on
page 80 for additional information.
LAN wake capabilities enable remote wake-up of the computer through a network. The LAN
subsystem PCI bus network adapter monitors network traffic at the MII. Upon detecting a Magic
†
Packet frame, the LAN subsystem asserts a wake-up signal that powers up the computer.
Depending on the LAN implementation, the desktop boards D850EMD2/D850EMV2 support
LAN wake capabilities in the following ways, which are with ACPI only:
•
Through the PCI bus PME# signal for PCI 2.2–compliant LAN designs
•
Through the onboard LAN subsystem
•
Through a CNR-based LAN subsystem
1.14.2.4 Instantly Available Technology
CAUTION
For Instantly Available technology, the +5 V standby line for the power supply must be capable of
providing adequate +5 V standby current. Failure to provide adequate standby current when
implementing Instantly Available technology can damage the power supply. Refer to
Section 2.11.3 on page 80 for additional information.
Instantly Available technology enables the desktop boards D850EMD2/D850EMV2 to enter the
ACPI S3 (Suspend to RAM) sleep state. While in the S3 sleep state, the computer will appear to
be off; the power supply fan is off, and the front panel LED is amber if dual colored or off if single
colored. When signaled by a wake-up device or event, the system quickly returns to its last known
wake state. Table 12 on page 41 lists the devices and events that can wake the computer from the
S3 state.
The desktop boards D850EMD2/D850EMV2 support the PCI Bus Power Management Interface
Specification. For information on the versions of this specification, see Section 1.5. Add-in
boards that also support this specification can participate in power management and can be used to
wake the computer.
The use of Instantly Available technology requires operating system support and
PCI 2.2–compliant add-in cards and drivers.
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